Inventor
Hideshi Nakatsu
Inventor
Yasugi, JP
Overview
Patents· 4 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
C22Cprimary
C22CAlloys60%
B26BHand-held cutting tools not otherwise provided for20%
C21DModifying the physical structure of ferrous metals20%
PatentTitleYear
8,815,147'Cold die steel excellent in characteristic of suppressing dimensional change'20146,763,593'Razor blade material and a razor blade'20046,663,726'High-hardness prehardened steel for cold working with excellent machinability, die made of the same for cold working, and method of working the same'20036,413,329'High strength steel for dies with excellent machinability'2002Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
2002–2014Patents assigned to HITACHI METALS LTD (4)· patent assignee history
2002–2014Based in Yasugi, JP· patent location history
2014Patents assigned to KOMATSUBARA SHUGO (1)· patent assignee history
2014Patents assigned to KUBOTA KUNICHIKA (1)· patent assignee history
2014Patents assigned to NAKATSU HIDESHI (1)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| HITACHI METALS LTD | 4 | 2002–2014 |
| KOMATSUBARA SHUGO | 1 | 2014 |
| KUBOTA KUNICHIKA | 1 | 2014 |
| NAKATSU HIDESHIself | 1 | 2014 |
Locations
| Location | Patents | Span |
|---|---|---|
| Yasugi, JP | 4 | 2002–2014 |